package com.sky.controller.user;

import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {

    @Autowired
    private DishService dishService;
    
    @Autowired
    private RedisTemplate redisTemplate;
    

    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result getDishByCategoryId(Long categoryId) {
        log.info("根据分类id查询菜品 : {}", categoryId);

        //使用先查redis缓存，如果有直接返回，没有再向数据库进行查询
        String key = "dish_" + categoryId;

        List<DishVO> dishVOList = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if (dishVOList != null && !dishVOList.isEmpty()) {
            return Result.success(dishVOList);
        }



        //里面已经封装好是查询启售的菜品
        dishVOList = dishService.listAll(categoryId);

        //查询了mysql就更新缓存
        redisTemplate.opsForValue().set(key, dishVOList);


        return Result.success(dishVOList);

    }

}
